red dot

I have a ruger p-89. I would love to put a red dot sights on it.

I have a couple of questions.

I know nothing about weaver rails. I know that aimtech makes a mount for it, but to me this seems to be to bulky. Do I have other mounting options?

Also I'm curently leaning toward the atn ultra sight for my pistol.
My main use for it will be plinking, but I do want somthing that will hold up well and last.
Are there better options for me?
I don't like the looks of the traditional scope looking red dots so I am trying to stay away from them, but I would gladly give up looks for quality if necessary.

thank you
dan

Hi

Your mount options for a semi-auto such as the P-89 are all going to involve a Weaver rail. This is the type of rail that all red dot scopes use and it is the only practical option for your Ruger.